baber/WOPTO huggingface dataset:
Patent DE-4207710-A1 (DE)
Title: Electromagnetically operated friction disc coupling esp. for driving fan wheel in IC engine - rotates wheel with direct rpm of driving pulley across first electromagnetic friction disc coupling and with two different windmilling rpms
Inventor: LINNIG KARL-HEINZ
IPC: F01P7/04
Filed: 1992-03-11
Abstract: The fan wheel (2) with non connected friction disc coupling can be driven across a second friction disc coupling at a low windmilling rpm. The rotor (8) at its radial outer annular wall or hollow shaft (9) has a belt drive pulley (5) for a drive. A further eddy current coupling (35) is provided between the fan wheel or similar, and the rotor (8) with the belt pulley, for the prodn. of a further windmilling rpm. The rotor (8) is located on a stationary shaft (34) across a ball bearing (33). ADVANTAGE - Requires higher engineering cost compared to known unit. Facilitates reliable and adjustable windmilling speed independent of friction of ball bearing and follower effect on rotor of eddy current coupling.
Patent DE-4209037-A1 (DE)
Title: Luggage accommodation in upper region of aircraft passenger cabin - is opened and closed by pneumatic jacks fed by electrically operated valves preset by remote control unit
Inventor: SCHWERTFEGER GUENTHER
IPC: B64D11/00
Filed: 1992-03-20
Abstract: The luggage is stored in a space under the ceiling above the centre seats, with receptacles (3) hinged about longitudinal horizontal axes and lowered for loading and unloading by means of a pneumatic system. Air is compressed (12), filtered (13), dried (14) and stored (15) for supply to valves (18) feeding the pneumatic cylinders (8) under the control of individual electric switches (20). The system can be operated remotely by a control unit (16) with an electrical line (22) from the flight deck or the purser's position. ADVANTAGE - Stowage space is more readily accessible in loading and unloading position of structure, and guarantees security in transport position.
Patent DE-4213299-A1 (DE)
Title: Igniter for oil-fired furnace - is combined with cotton threads forming wick and can have paraffin impregnated support attached to wick
Inventor: KOTTNAUER LOTHAR DIPL ING
IPC: F23Q13/00
Filed: 1992-04-23
Abstract: The igniter is combined into a unit with threads forming a wick. It can consist of a paraffin-impregnated support joined to cotton fibres. USE/ADVANTAGE - Forms a better aid for the firing up operation. Provides maximum surface area supporting combustion until the fuel reaches boiling-point.
Patent DE-4215708-A1 (DE)
Title: SRAM with high integration density - comprising diffusion section on substrate, electrodes and insulating sections
Inventor: LEE YONG HOON
IPC: H01L21/8244
Filed: 1992-05-13
Abstract: A SRAM (Static Random Access Memory) comprises: (a) a substrate (1) of a conductance type having on its surface an interference-diffusion section (2) of a second conductance type (b) a pair of layers (3,3a) of the first conductance type, each layer having a diffusion section (4, 4a) of second conductance type of predetermined width and thickness; (c) a pair of second layers (5,5a) of second conductance type, each layer having a diffusion section (6,6a) of second conductance type of predetermined width and thickness; (d) an earth electrode (7) (e) a pair of first electrodes (8,8a) (f) a pair of second electrodes (9,9a) (g) a pair of first insulation section (10,10a) (h) a pair of second insulating sections (11, 11a) (i) a pair of charging resistances (13, 13a) and (j) a pair of third insulating sections. Prodn. of the SRAM is also claimed. USE/ADVANTAGE - The SRAM can be a static storage with selective writing and reading access. It has a high integration density.
Patent DE-4218104-A1 (DE)
Title: Waste heat recovery system for reciprocating piston engine - consists of heat accumulator fastened to piston to supply heat exchanger to maintain compression chamber temperature.
Inventor: BIRKNER RUDOLF
IPC: F01L9/16
Filed: 1992-06-02
Abstract: The system uses a heat accumulator, fastened to the piston. The accumulator consists of a thin-walled cylinder with base, and is externally coated with an anti-heat conductor. The accumulator protects piston and cylinder against heat and heat radiation. Part of the heat generated during combustion, is fed into the heat exchanger. It is used to maintain high temperatures in the compression chamber. The exhaust tubes are formed as heat exchangers, and here the heat is extracted from the exhaust gases and fed to water.. USE/ADVANTAGE - To generate additional rotary energy. Environmentally friendly.
Patent DE-4225590-A1 (DE)
Inventor: SZUECS JOHANN
IPC: B24C5/04
Filed: 1992-08-03
Abstract: An apparatus for the treatment, for example the cleaning, of sensitive, especially heavily contoured, surfaces such as those of sculptures made of wood, plaster, bronze and the like, has a mixing head (1) for mixing media fed to the mixing head (1) and for spraying a treatment jet (50) formed therefrom. The mixing head (1) possesses a mixing chamber (30) into which, under pressure, a first jet with a liquid treatment medium is introduced via a first feed pipe (10) through an inlet (12) and a second jet, the jet axis (22) of which is inclined at an angle ( gamma ) with respect to the jet axis (11) of the first jet and extends eccentrically thereto, is introduced via a second feed pipe (20). In this apparatus, the inlet (12) for the first jet has a slot-like inlet opening (14) which is oriented so that the first jet substantially covers the cross-sectional area of the second jet in the intersecting region. The treatment of sensitive, heavily contoured surfaces is effected, according to the invention and in particular using this apparatus, by means of a treatment jet (50), rotating about its generating jet axis (11), with at least one treatment medium which is liquid prior to its atomisation. The treatment jet opens, despite its rotation, at an angle ( alpha ) of less than 30 DEG . <IMAGE>
Patent DE-4229967-A1 (DE)
Title: Transverse acceleration measurement for vehicle active suspension, ABS or ASR control - generating pulses for each rotation of left and right wheels during defined time duration
Inventor: RANZENBERGER RALF
IPC: G01P15/16
Filed: 1992-09-08
Abstract: A transverse acceleration measuring system uses the detected rotation of each of the vehicle wheels (1, 2) mounted in the same wheel axle within a given time interval, corresponding to the distance travelled by each wheel. The detected values are fed to a processing stage (7), allowing the corresponding transverse acceleration to be calculated. The rotation signals are provided by a pair of sensors (4,5) associated with the left and right non-driven wheels, each providing a signal pulse upon each full rotation of the respective wheel. USE/ADVANTAGE - Eg for anti-lock brake system or anti-slip regulation. Provides high measuring accuracy.
Patent DE-4232277-A1 (DE)
Title: Non-contact semiconductor wafer height measuring appts. for circuit testing system - has platform for carrying semiconductor wafer and platform driving system for driving platform in determined direction and distance measuring unit
Inventor: YAMAMOTO AKEMI
IPC: G01N21/956
Filed: 1992-09-25
Abstract: The distance measuring unit (20) is fixed at a distance from the platform (3) in the determined direction. A light source  transmits a light beam (L) directed on the semiconductor system . A sensor receives a light beam reflected from the semiconductor system. A drive unit is provided, which determines a distance to the semiconductor system , on the basis of an output signal of the sensor. A control unit (30), controls the platform driving system (10Z) in such away, that the platform is positioned in the determined direction, on the basis of an output signal of  the distance measuring unit. USE/ADVANTAGE - Determining faults in semiconductor wafers. Height position of semiconductor system can be correctly measured, exactly adjusted without damage to semiconductor system.
Patent DE-4236815-A1 (DE)
Title: Removing radioactive contaminants from atomic power plant
Inventor: SUGIYAMA KAZUYA
IPC: C02F1/461
Filed: 1992-10-30
Abstract: In removing radioactive contaminants from atomic power plant and related facilities, appts., pipes, building materials, etc., the parts are contacted with an electrically charged water to remove radioactive contaminants.     Pref. electrically charged water is obtd. by treating water at 20-50 deg. C between anode and cathode under 0.2-30A, and the water used can also be reused by passing it through filters.
Patent DE-4236978-A1 (DE)
Title: Dental implant locking into jaw-bone when turned through 90 deg. - has opposed sets of lamellae on either side of central shaft which accommodates screwed support for crown
Inventor: GRUNER JEAN DR MED
IPC: A61C8/00
Filed: 1992-11-02
Abstract: The dental implant (11) is designed to fit firmly into the patient's jawbone. It has a shaft (12) into which a support (18) for a crown is screwed, with a male threaded end portion (19) engaging a threaded blind bore in the shaft. The shaft has two groups of projecting lamellae (13) on either side which may pass through a slot in the edge of the jawbone and may grip the hard outer layers of the bone when turned through (90) deg. Corners on each set of lamellae may be rounded to assist this rotation. USE/ADVANTAGE - Dental implant which locks into place in patient's jawbone with min. work.
Patent DE-4239927-A1 (DE)
Title: Modified two-stroke rotary-piston engine with slide-valve control - has three slide-valves reciprocated radially to open and close combustion chamber and for sepn. of inlet and exhaust ports.
Inventor: POESCHMANN MATTHIAS
IPC: F02B53/02
Filed: 1992-11-27
Abstract: During a first stroke the fuel/air mixt. is compressed ahead of the piston (2) rotating on its shaft (1), while behind it the mixt. for the next cycle is inducted (8) into the compressor side of the working space (12). A sparking plug (6) ignites the compressed mixt. while inlet and exhaust valves (4,3) are closed. The second (power) stroke sets the piston in rotation while combustion prods. from the previous cycle are expelled through the exhaust port (7) with the third valve (5) segregating the exhaust gas from the fresh intake. USE/ADVANTAGE - For land vehicles, boats, aircraft and movable power plants, more efficient conversion of pressure into torque reduces fuel consumption with higher power per unit of wt. and vol. Reduced amount of wear between sealing strip and compression wall owing to microprocessor control giving optimum slide-valve forces.
Patent DE-4241171-A1 (DE)
Title: Clutch control via electromagnetic valves and pressure controller in automatic gearbox - involves gradual restoration of clutch pressure when transmission is resumed after period of anti-creep torque redn.
Inventor: GIERER GEORG
IPC: F16H59/66
Filed: 1992-12-07
Abstract: The gearbox (3) driven by a shaft (2) from the engine (1) contains clutches actuated by electromagnetic valves in a hydraulic controller (4). This and the engine are subject to electronic control by microprocessors (5,8) interconnected by a signal line (7) for redn. of engine output torque e.g. by action on fuel injection or ignition timing or throttle closure. Torque transmission by a driving clutch is interrupted or reduced to prevent creep from standstill. Increase of pressure in the clutch during reversion to normal operation is timed in conjunction with the torque control. ADVANTAGE - Engine torque is reduced at a clearly recognised transition between anti-creep control and normal traction, so that the clutch takes up load at a low pressure level, reducing wear and prolonging lifetime.
Patent DE-4241892-A1 (DE)
Title: Thermo-sensitive flowmeter - has bridge circuit with one series circuit contg. thermally sensitive resistor immersed in measurement liquid, and second series circuit forming bridge circuit
Inventor: TADA YASUO
IPC: G01F1/698
Filed: 1992-12-11
Abstract: The flowmeter comprises a thermally sensitive resistor (3) immersed in a measurement liquid and in series with a resistor (R1) and a second series circuit contg. resistors (4,R2) in parallel with the first series circuit to form a bridge circuit. The thermally sensitive resistor is heated so that a liquid flow rate is detected via radiation. The resistor values are set so that the bridge is balanced when a thermally sensitive resistor heating value reaches a defined level. The voltage (Vb) at the node between the thermally sensitive resistor and the first resistor is set to a defined output voltage. ADVANTAGE - Has low flow rate signal temp. characteristic error. Accuracy ensured over entire flow rate measurement range.
Patent DE-4244517-A1 (DE)
Title: Photochemical crosslinking of persistent silicon carbide ceramic precursors - by UV-irradiation of poly-silane(s) in presence of special bis:azide(s), e.g. 2,6-bis-(4-azido:benzylidene)-4-methyl-cyclohexanone
Inventor: WEISE KATHRIN
IPC: C04B35/571
Filed: 1992-12-30
Abstract: A process for the photochemically-induced crosslinking of persistent SiC precursors (I), pref. polysilanes based on units of formula -SiR1R2-. Where, R1 = H, alkyl, alkylene or aryl; R2 = alkyl, alkylene or aryl. The process is induced with the aid of a bis-azide of formula (IIa or IIb) and is carried out in soln., gel, suspension or a solid layer, pref. in solns. of (I) and (IIa or b) in THF or cyclohexane, by irradiation with UV of wavelength above 300 nm, pref. at 15-30 deg.C. (II) should only be used in amts. up to the absorption limit of the system, in order to avoid undersirable side reactions and to optimise the irradition time and depth of irradiation, pref. 0.5-2.5 wt.% w.r.t. (I). Crosslinking can also be carried out in a solid phase contg. little or no solvent, pref. in thin layers or mouldings. USE/ADVANTAGE - The process is useful for the crosslinking of silane precursors of non-oxide ceramics at wavelengths above 300 nm (thus minimising radical decompsn. of the Si chain). The process can be carried out in soln. on a large scale with high throughput, to give crosslinked solid precursors with a wider range of application w.r.t. prior-art processes, e.g. for prodn. of ceramic matrices, post-infiltration of sintered ceramics and as binders in green ceramic prods.. A previous UV-crosslinking process could only be used with spun polysilane fibres.
Patent DE-4304615-A1 (DE)
Title: Motor-vehicle door having a securing arm which is subjected to loading by means of a spring and is intended for fixing the door in a 90@-latching position and a 180@-latching position
Inventor: DAUBITZ ANDRE
IPC: E05C17/28
Filed: 1993-02-16
Abstract: In the case of the prior art, there is provided a motor-vehicle door having a securing arm which is subjected to loading by means of a spring and is intended for fixing the door, relative to a fixed part of the motor vehicle, in a 90@-latching position and a 180@-latching position, which securing arm is mounted at one end such that it can be pivoted about a pivot axis, parallel to the axis of rotation of the door, and exhibits, in the region of its free end, a guide element assigned to a guide. According to the invention, the securing arm is arranged in a retaining means on the door, and the guide element butts, between the closed position of the door and the 90@-latching position thereof, against an abutment surface which is parallel to the pivot axis of the securing arm and belongs to the fixed part of the motor vehicle and at whose end there is provided a clamping element which forms the 90@-latching position of the door and into which the guide element of the securing arm can be latched. Use for lorries. <IMAGE>
Patent DE-4304667-A1 (DE)
Title: Target moderator reflector arrangement for a pulsed high-power spallation neutron source
Inventor: CONRAD HARALD
IPC: H05H6/00
Filed: 1993-02-16
Abstract: The invention relates to an arrangement for a pulsed neutron source having a rotatable target, having a proton beam guide parallel to the rotation axis of the target, and having a further target in order to form a so-called "flux trap" geometry. In order to achieve on the one hand a low power density, associated with low beam damage, and on the other hand to achieve improved neutron economy in an advantageous manner, it is provided that one of the further targets is designed such that it can rotate. It can be advantageous to design the arrangement such that, in the case of this arrangement, the last target in the proton beam direction is dimensioned, in the orientation at right angles to the proton beam direction, such that the proton beam, which has expanded at this point, is completely trapped.
Patent DE-4307492-A1 (DE)
Title: Hollow profile
Inventor: SCHOENFELD HANS VICTOR
IPC: E04B2/60
Filed: 1993-03-10
Abstract: The invention relates to a hollow profile for use as support and load-bearing member having grooves or depressions, running longitudinally on the periphery, for receiving sheet-like structural elements, glass panes or the like, which are closed or can be closed when not in use. With such a profile, at least one longitudinal strip of the outer wall is designed as a separate profile part and can be plugged into a correspondingly configured opening of the hollow profile. Consequently, glass panes can be inserted more easily into the fixedly mounted profile. The insertable profile parts, moreover, have the function of glazing bars and, at the same time, secure the glass panes in the hollow profile. Furthermore, the hollow profile permits, by way of the changeable outer contours, a versatile, even subsequent, configuration of the cross-sectional form of the hollow profile, this not only being adaptable in a technically advantageous manner to specific requirements, but also being capable of being universally configured in accordance with optical preconditions without changing the static properties of the hollow profile to any great extent.
Patent DE-4307745-A1 (DE)
Title: Variable delivery compressor with eccentrically mounted rotor - has by=pass channel between chambers which is opened and closed by folding bellows.
Inventor: SAKAKURA DAISUKE
IPC: F04B1/047
Filed: 1993-03-11
Abstract: Compressor with variable delivery output having a housing (11) with a cavity (12a) containing an eccentrically mounted rotor (16) which determines a compression chamber (22) and a suction chamber (21). A bypass channel (26a) with the shape of a slotted hole produces a fluid connection between the compression chamber and the suction chamber, and a folding bellows opens and closes the bypass in relation to pressure in the suction chamber. USE/ADVANTAGE - Compressor for a vehicle air conditioning system capable of operating at high speed and responsive to demand loads.
Patent DE-4310723-A1 (DE)
Inventor: CLEVER GERHARD
IPC: H02M5/293
Filed: 1993-04-01
Abstract: Using semiconductor switches which can be turned off, it is possible to control the alternating current flowing through a load using the phase-gating principle or the phase-chopping principle. However, it is necessary to operate with phase-gating for an inductive load and with phase-chopping for a capacitive load. A method and a device are intended to be created which allow no attention to be paid to the respective type of load. To this end, according to the invention, a test program is initiated first of all when the mains voltage is applied, by means of which the type of load is determined and, subsequently, phase-gating is used for an inductive load and phase-chopping for a capacitive and/or resistive load. <IMAGE>
Patent DE-4315270-A1 (DE)
Inventor: NEMEGEER DIRK
IPC: C04B28/02
Filed: 1993-05-07
Abstract: Steel fibre reinforced concrete with very high flexural strength, obtained by the fact that a concrete composition is used with a compressive strength (P) of at least 80 N/mm<2>, with fibres made by a cold work hardening cross-section reduction operation, having a length-to-thickness ratio ranging from 60 to 120, and with a grappling form, the tensile strength (T) of the steel being in a proportion with respect to said compressive strength (P) according to the formula: T/P > 17.
Patent DE-4318674-A1 (DE)
Title: Heater rail - has a series of ceramic guides indented for the rapid passage of yarn above the heater element where the guides are held in an alloy rail
Inventor: MORHENNE SIEGFRIED
IPC: D02J13/00
Filed: 1993-06-04
Abstract: Equipment to heat a continuously moving yarn through a metallic channel, with a series of separate guides for the yarn. The guides are retained between the walls of the channels by retainers. Pref. the double channel (22) is formed from profile drawn copper-aluminium alloy. The interior six sided formation ensures the guide sections (18) are securely held and aligned. The top V notch receives the yarn. The guides are from heat resistant ceramic. There is a second indentation at the side of the guide section to accept a wire (20), which runs along the channel in one of the angles. Between the guides a series of set-screws (60) press against the wire (20), so that the guides are fixed at the correct distance from each other. The sections form a heat chamber, which is heated from an electrical element in an insulated tube (14) running along the base of the rail. The rail may be curved to ensure that no gaps appear between yarn and guide surface. A cover of heat insulating material may be superimposed on the rail to retain heat. USE/ADVANTAGE - Temperature variation along the channel is avoided. The yarn is almost totally enclosed. The guide arrangement is variable to suit conditions. Loss of heat by convection is avoided. The yarn is held to the guides continuously. The guides are fixed firmly. Different zones of heat can be arranged. The heat is applied direct, and the guides have a self cleaning capacity.
Patent DE-4321678-A1 (DE)
Title: Contactless measurement of the position of the wheels of rail vehicles (rail-bound vehicles)
Inventor: FREDERICH FRITZ PROF DR ING
IPC: G01B7/00
Filed: 1993-06-30
Abstract: The invention relates to a device by means of which it is possible to measure the position of the wheels of rail vehicles relative to the rail in a contactless fashion. Instead of measuring the distance between the wheel flange of the wheel and the gauge line (running edge, inner edge) of the rail, it is a bending moment (flexural torque) produced by the wheel load in the chassis (running gear) structure which is measured. The bending moment - product of force x lever arm - changes when the position of the wheel relative to the rail, and thus the position of the wheel/rail contact point and thus the lever arm of the point of action (attack) of the wheel load change. The position of the wheel relative to the rail is suitable, in particular, as controlled variable for a control loop for the purpose of electronically supported (aided) track keeping (track guidance).
Patent DE-4322633-A1 (DE)
Title: Chuck used in forging machine
Inventor: BRAUNWIESER JOHANN ING
IPC: B21J13/10
Filed: 1993-07-07
Abstract: The chuck for a forging machine incorporates a rotationally driven spindle carrying jaws for gripping a workpiece, with the spindle drive provided with a spring system which permits torsional oscillations. It is characterised by the fact that the spring system consists of a hydraulic cushion whose filling vol. is adjustable and is penetrated alternately, dependent on the oscillatory motion at least by two displacer elements attached to the oscillating component of the drive.     The hydraulic cushion is an accumulator vessel with a variable vol. joined to cylindrical spaces penetrated by the displacer elements. The accumulator vessel is shaped as a cylinder with a piston whose position can be altered. There are at least two vessels with variable vol. which can be alternatively joined to the cylindrical space. The oscillating component of the drive is a worm unit engaged with a wormwheel rigidly fixed to the spindle. The worm unit is provided with an end section incorporating the displacer elements which produce a spring load on the unit when it deviates from its central position.